Clutch.



citizen of the United States, and a resident of- 'UNITED STATES- ,Parnnr orrrcn.

NELS E." swANs'oiv, or tonic; NEBRASKA-- c LU TCH No.j19,469.

Specification of Letters 2 Patent.

' ratented may 1,1906.

Application filed September 11. 1905'. seen No. 278.645. I

,To all whont it may concern:

Beit known that-I, NELs E. Swanson, a

York, in the county of York and State of Nebraska, have invented a new and'In'i'proved Clutch, of which the following is a full, clear,

. and exact description.

The invention relates to a friction-clutch of that class in which a ring is expanded or contracted against a shell or'drum to fasten the two mem here together; and it consists in various 1m rovements 1n the construction andassemb age of the device, among which may be enumerated the arrangement of the shell with the band andits carrier and the devices for acting on the band-to expand it.

' Reference is to be had to the accompanying drawings, forming a part of this specificat-ion, iIiWlilCh similar characters of reference indicate corresponding parts in all the. figures.

' Figure 1 is-a longitudinal section on the line 1 1 of Fig. 2. .Fig. 2 is a sectional elevation on the line 2 2 of Fig. 1.. Fig. 3 is a section on the line 3 3 of Fig. 1. .Fig. 4 is a detail ofone of the toggle-links for expanding 1, may be taken to represent the continu-.

Fig. 1.

the ring,-'and Fig. toggle-link. g

The clutch is here shown as applied to two shafts driving one from the other, and in Fig.

5 isa detail .of the other ously-rotating shaft, and 11 the shaft driven therefrom at will, To the shaft 10 is keyed a hub 12, having at one end a web 14, provided,

with a lateral ear 15 near its periphery anda peripheral groove 16.

1 7 indicates the Cliljlfllt-bfind, which has two lugs 18 adapted to rebeive the ear 16 between them. On the. inner side of the ringis formed an annular rib 19, adapted to be loosely received in the groove 16, as shown in In this manner the band 17 rotates with the parts 14, ]2,--and 10, is held incapable of movement axially of the shaft, am is free to'ex'pand or contract, for which purpose the band 18 split at the point 17 opposite ear 15 and lugs 18. (See Fig. 2,)

To the shaft 11 is keyed a hub 20, carrying.

a cylindric shell-or drum having a removable which carries a sleeve 23, loosely end wall 22, inclosingthe shaft 10. Loose on the sleeve 23'is a collar 24, adapted to. be operated by a lever 25 of any suita 110 form. This collar fZ-t is -j()l116(l b y links 26 to a cone 2.7.-wl11ch slides freely on the hub and is encircled by the band by the cone 27.

.the drum.

17. The cone 2? is adapted to operatethe' togglefor expanding the clutch-ring, One link of the toggle, as shown in Fig. 4, is composed ofa knife-edge member 28, having a I stud 2 9 adjustable therein, the stud terminating in a ball 30. The other link' 31 of the toggle has a knife-edge 32 atoneend and a socket 33 at the other, the socket receiving the ball '30. Projecting from said second end of the link 31- is a tail 34. The knifeedges 28 and 32 are received, respectively, in

ockets 17*, formed in the end )ortions of the I and 17', and the tail 34 of t e link 31 lies against the .hub 12 in will engage the tail 3-1 of the link 31 and rock the links, as per, the dotted lines in F ig'. 2.- The toggle action thus exertedon the band expandsthe same. causing it to clamp against theinner side of the drum and firing together the two parts of the clutch. Upon returning. the lever 25 to its first position the cone will be withdrawn and the band will disengage In connection with this opera tion it will be seen that tho toggle exercises a great leverage on the band and gives the clutch great power. It will also appear that, the shell or drum 21 completely incloses the. normally rotating parts and makes the clutch compact and safe,.as well as furnishing a receptacle or case in which oil may be placed to lubricate the running parts.

H'aving thus described my invention, I claim as new and desire to secure by Letters- 1. In a clutch, theconibination of a shell or hollow drum adapted to be attached to one member, a web located inthe drum and adapted to be attached to the other. member, said web having an annular groove, an exooselv in the groove, and means in the drum for operating the band.

.pansion band ha\.'1ng an annular rib fitting In a clutch, the conibiinition of a i'ofarv' drum, a rotary split band coacting"therewith,

a t" qgle'lyin'g'i n the plane of rotation of the 1 3'. .In 171 .ol utch the oom blnntio'nl'of a rotarydrum, ti, rotary splitbendfco oting therewith a toggle in' the plme of rotation of the bandto operate the same; onelink of thertoge gle hafi ihge teilextendi'ng toward the axis of rotation .of. the band, and. means for Op 6118i;-

.ing'the, toggle through the medium of'the Ztail' inoluding a tapering operating member band,

movableqalong the axis of rotation of the A j'4'. In'a clutch; the-combination of.a rota-ryfd I;' um,- a rotery split bahd ooactingtherewith,

and havln'g pockets in its'end 'p'ortions,.a t0g gle-link engaged one-pocket and ha ving' a ball at its end, a Second toggle-link. engaged inthe' other pocket and havmg a socket recei ing-th'e sald ball, the second linkhaving a tail projecting toward the axis of rotatio'n of the band,;end 'nfleans for operating the toggle? slijnks thl'pu h the inediumpf the tail; Y 1 5. In a c utoh, the eombinatio'n-of-a hollowrotary drum,-e hub arranged loosely therein 'the'd m and hub being edapted'to be con-- hectedfespect'ively' with the parts to be con Ilecte'd by the clutch,' a web'dttached to the hub within the drum, a split bandictl ried by i the web e-hd loosely engaged withthe pen h- .ery thereof; a-toggle" connected to the ban to operate the salme, a "(zone loosely mounted on theihub glnd otatihg with the drum,'. and a member located outside of the drurn'and rotetihg "therewith, said member being connected with the cone to permit m'oving the; cone to operate the. toggle.

.II'1' testimony whereof I'ha'ye signed my,

name to specification inithepresenee' of two subscrlblng w ltness'es.

NELS E. SWANSON.

Witnesses:

GEO. .F. DARW N} CARL ERIoKsoN, 

